PHP if/else shorthand notation - multiple conditions

被刻印的时光 ゝ 提交于 2019-12-01 10:43:42

In PHP, the conditional operator is left-associative[PHP.net], compared to virtually all other languages where it is right-associative.

That's why you need to use parentheses to control the order of evaluation1:

 condition  ? code_if_true  : 
(condition2 ? code_if_true2 : 
              code_if_false ); 

1The order in which which operators are resolved, not when operands are evaluated. The latter is basically undefined[PHP.net]

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